Frequency
THztoHz
Convert terahertz (THz) to hertz (Hz).
Factor1 THz = 1e+12 Hz
Converter
THz
Accepts numbers or expressions, e.g. 150 + 14.7
Result
Hz
Rendered to 6 significant figures.
Formula
Formula
Hz = THz × 1e+12
Multiply any value in terahertz by 1e+12 to obtain the value in hertz.
Worked example
Convert 1 THz to Hz.
- 01Start with 1 THz.
- 02Multiply by the conversion factor: 1 × 1e+12 = 1e+12 Hz.
Result1 THz = 1e+12 Hz
Conversion table
| THz | Hz |
|---|---|
| 1 | 1e+12 |
| 2 | 2e+12 |
| 5 | 5e+12 |
| 10 | 1e+13 |
| 20 | 2e+13 |
| 50 | 5e+13 |
| 100 | 1e+14 |
| 200 | 2e+14 |
| 500 | 5e+14 |
| 1000 | 1e+15 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from THz to Hz?
1 THz equals 1e+12 Hz. To convert, multiply the value in terahertz by 1e+12.
How do I convert 1 THz to Hz?
1 THz = 1e+12 Hz. For any value, multiply by 1e+12.
How do I convert Hz back to THz?
Divide by the same factor — or equivalently, multiply by 1e-12. So 1 Hz = 1e-12 THz.
When would I need to convert terahertz to hertz?
Frequency conversions between THz and Hz are needed in signal and RF engineering, motor and turbomachinery rotational-speed work, vibration and pulse-rate analysis, and control-loop sample-rate specification. Hz dominates electronics and instrumentation; kHz, MHz and GHz cover audio through microwave; rpm and rps dominate mechanical rotational equipment; cycles per minute, second and hour cover slow industrial cyclic processes. Angular frequency (rad/s) and time-period (Hz ↔ seconds) conversions are NOT included — they require either a 2π factor or a reciprocal relationship.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).